A full-body character design of a void arcanist emerges, enveloped in swirling mist, rendered in photorealistic detail with octane precision, utilizing the power of unreal engine to achieve hyper-detailed textures. The arcanist's attire is adorned with intricate, glowing runes that pulse faintly in the dark, their robes flowing like liquid shadow. Volumetric lighting enhances the scene, casting ethereal beams through the mist, illuminating their enigmatic eyes which gleam with otherworldly knowledge. The fantasy art captures the enigmatic aura and mystique surrounding the void arcanist, standing as a figure of power and mystery in a world where reality and arcane art intersect.